A newly issued call for bids to carry out the study says work will focus on regions north of the 55th parallel as well as on isolated areas in Manitoba, northwestern Ontario and northern Quebec.

The goal is to fully identify the hazardous substances transported throughout these areas, along with major hubs that link to relevant airports, marine ports, ice roads, railroads, mines, manufacturing plants and warehouses.

The information will help Transport Canada pinpoint potential risks and make decisions concerning safety regulations and compliance.